Perpendicular Gothic architecture was the third and final style of English Gothic architecture developed in the Kingdom of England during the Late Middle Ages, typified by large windows, four-centred
King's College Chapel, Cambridge, Great East Window (four-centred arch, straight mullions and transoms)
The chancel of Gloucester Cathedral (c. 1337–1357)
Chapter house by William de Ramsey (c. 1332) at Old St Paul's Cathedral (by Wenceslaus Hollar); destroyed in the Great Fire of London in 1666
Four-centred arch west window of St George's Chapel, Windsor Castle
Tracery is an architectural device by which windows are divided into sections of various proportions by stone bars or ribs of moulding. Most commonly, it refers to the stonework elements that support
Plate tracery, Laon Cathedral, north rose window
Plate tracery, Lincoln Cathedral "Dean's Eye" rose window (c. 1225)
Rayonnant bar tracery, Notre-Dame de Paris, north rose window
Bar tracery with cusped circles, Reims Cathedral, apse chapel